Tag Archives: sand dunes

THEMIS: Lines of dunes in Noachis Terra crater

Posted on February 2, 2017 by rburnham

THEMIS Image of the Day, Februrary 2, 2017. This VIS image shows sand dunes on the floor of an unnamed crater in Noachis Terra. Since Mars is universally dusty, the darker tone of the dunes shows they are relatively free … Continue reading →

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THEMIS: Dune field in Hale Crater

Posted on February 1, 2017 by rburnham

THEMIS Image of the Day, February 1, 2017. Today’s VIS image shows a field of sand dunes on the floor of Hale Crater. Hale Crater is located in Noachis Terra north of Argyre Planitia. More THEMIS Images of the Day … Continue reading →

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HiRISE: Dunes in northern summer

Posted on January 31, 2017 by rburnham

This dune field formed near the base of the North Polar cap. Dunes require a source of loose particulate material to form. The source of the northern dune fields around the polar cap may be from the layers of dusty … Continue reading →

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THEMIS: Field of dunes in Sumgin Crater

Posted on January 30, 2017 by rburnham

THEMIS Image of the Day, January 30, 2017. Today’s VIS image shows sand dunes on the floor of Sumgin Crater. The crater is located in Noachis Terra north of Argyre Planitia. The dunes’ darker tone suggests they are relatively dust-free … Continue reading →

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THEMIS: Crater channels, gullies, dunes & a pit

Posted on January 25, 2017 by rburnham

THEMIS Image of the Day, January 25, 2017. This VIS image shows part of an unnamed crater in Terra Cimmeria. The crater rim is dissected by gullies, and the central pit has several channels entering from the higher elevation of … Continue reading →

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THEMIS: Gale Crater mound’s northern side

Posted on January 20, 2017 by rburnham

THEMIS Image of the Day, January 20, 2017. Today’s false color image shows part of the floor of Gale Crater and the northern side of Mt. Sharp (Aeolis Mons). The blue-colored areas on the crater floor are likely dunes made … Continue reading →

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THEMIS: Waves of dunes in Rabe Crater

Posted on January 18, 2017 by rburnham

THEMIS Image of the Day, January 18, 2017. Today’s false color image shows part of the sand dune field on the floor of Rabe Crater. (More on Rabe Crater here.) The THEMIS VIS camera contains 5 filters. The data from … Continue reading →

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THEMIS: Terra Sirenum dunes & gullies

Posted on January 16, 2017 by rburnham

THEMIS Image of the Day, January 16, 2017. Today’s VIS image is of an unnamed crater in Terra Sirenum. There are gullies dissecting part of the crater rim, and small dunes on the crater floor. More THEMIS Images of the … Continue reading →

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THEMIS: Active dunes in Noachis Terra

Posted on January 10, 2017 by rburnham

THEMIS Image of the Day, January 10, 2017. Today’s VIS image shows part of Noachis Terra, including several large dunes on the floor of an unnamed crater. These dunes are dark in tone, hence free of the light dust that’s … Continue reading →

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THEMIS: Firsoff Crater in false color

Posted on January 6, 2017 by rburnham

THEMIS Image of the Day, January 6, 2017. Today’s false color image shows part of the interior deposits and floor of Firsoff Crater. The “blue worms” at the bottom of the image are sand dunes. The THEMIS VIS camera contains … Continue reading →

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